Paperboard berry box



J. R- CHQATE PAPERBOARD BERRY BOX July 12, 1960 2 Sheets-Sheet 1 FiledAnt. 2. 1957 INVENTOR JR lkmflzl ATTORNEYS July 12, 1960 J. R. cHoA'r2,944,721

PAPERBOARD BERRY BOX Filed Aug. 2, 1957 2 Sheets-Sheet 2 INV EN TOR JIZ.lj afllz' BY WM ATTORNEYS in'Figui-e 3.-

Manufacturing Company, Inc., Murfreesboro, N.C., a corporation of NorthCarolina Filed Aug. 2, 1957,Ser.No. 675 ,854.

1 Claim. (Cl. 229-34) The present invention relates to paperboard berryboxes, and more particularly to such boxes which are reinforced to equalor surpass the strength of prior art wooden berry boxes.

The primary object of the invention is to provide a paperboard berry boxhaving its upper edge reinforced to withstand horizontal and verticalpressures applied thereto.

Another object of the invention is to provide a berry box having theabove characteristics which is formed from a single folded blank.

A further object of the invention is to provide a paperboard berry boxwhich is inexpensive to manufacture, simple to use and fill, and whichwill withstand exceedingly hard usage without becoming damaged therebyor permitting the contents thereof to be spilled or damaged. a

Uni d Sta es; Paten 70 7 c and each include'upwardly and outwardlytapering side A further object of the invention is to provide'a paperboard berry box with a rim'of suflicient strengthto' withstand pressureas generated in the process of heat sealing a transparent film to theouter inclined area of'the box rim, to form a transparent cover over thebox contents.

Other objects and advantages will. become apparent inthe followingspecification when COI1Sid616d in the light of the attached drawings, inwhich; I

Figurel is a perspective view of the invention. V

Figure 2 is an enlarged fragmentary vertical crosssection takenalong'the line 22 of Figure 1 looking section taken along the line 6--6of Figure 5, looking in the direction of the arrows.

Referring now to the drawings in detail wherein like referencecharacters indicate like parts throughout the several figures/thereference numeral 10 indicates generally a berry box constructed tion..V ,7

The box 10 isillustrated in Figure 1 in' erected position with the blankfrom which it is formed being shown parallel opposite side edges 14 and15 extending perpendicularly therebetween.

to the bottom wall 11 and a side wall 19 identical to the side wall 18is integrally joined at 15 .to the bottom wall 11;

The side walls 18 and 19 are'of identical construction The box 10includes a bottom-wall 11 I having parallel opposite side edges 12 and13 joined by thereto in overlying relation.

serte'd between the reinforcing panels 24 and their ad 7 'jacent panels22 and are glued to'the inner face of the in accordancewith theinvenupper edge of the box 10.

edges 20', 21! The side walls 18 and 19 each have an' outwardly slopingupper end panel 22 integrally joined theretoalong a fold line 23. Areinforcing panel 24 is integrally joined to the panel 22 along a-foldline 25.

Flaps'26 are integrally joined to the reinforcingpanels 24 along a foldline 27 and has an elongated glue tab 28 secured thereto along a foldline 29. The fold lines -14, 15; 23, 25, 27 and 29 are all parallel toeach other,

asbest illustrated in Figure 3. r t

The side walls 16 and 17 are identical to each other and have outwardlyand upwardly sloping tabs 30, 31 integrally secured to the opposite sideedges thereof along fold lines 32, 33, respectively. The side walls 16and 17 are provided with outwardly sloping panels 34 provided withoppositely extending corner tabs 40, 41. 7 An elongated mounting tab 42is integrally joined to the panels 36 along a fold line 43 and has anelongated glue tab 44 joined to the opposite edge thereof along a foldline 45. The fold lines 12, 13, 35, 37, 43 and 45 are all parallel toeach other as seen in Figure 3.

The corner tabs 40', 41 are curved at 46 to facilitate the formation ofthe corner construction in assembling the berry box. A plurality ofventilating perforations 47 are arranged along the fold'lines 32,33, forreasons to' be assigned.

Theberry box 10 iserected by folding the side walls '16, 17, 18 and 19to a generally upright outwardly sloping posit-ion with thereinforcing'panels 24, 36v folded downwardly at an angle thereto, asbest illustrated in Figure 2, so thatthe gluefiaps 28, 44 canfbe securedto the box 10 withthe flaps-26, 42'extending horizontally locking thereinforcing panels 24, 36 in position.

The flaps 30, 3-1 are bent at right angles to the side walls 16, 17 andhave the side walls 18 and 19 glued The tab-s 40, 41 are in reinforcingpanels 24.

The tabs 28, 39 are engaged against and glued to the opposite ends ofthe panels 22, as best illustrated in Figure 6.

In erecting the box 10, the upper portions of each of the walls 16, 17,18 and 19 are completely formed before the adjacent walls are joined andthe arcuate corner 46 7 of the tabs 40, 41 permit the tabs 40, 41 to beswung into final position without binding.

As will be noted from Figure 2 in the drawings, the panels 22, 34 arearranged at a slightly divergent angle to the'side walls 16, 17,18 and19 adding strength to the Having thus described the preferred embodimentofthe invention, it should be understood that numerous structuralmodifications and adaptations may be resorted to without departingfr-omthe scope of the appended claim.

What is claimed is: I a

A paperboard-berry box comprising an integral blank having a rectangularbottom panel, aplurality of side panels integrally joined to said bottompanel and ex-' tendingupwardly therefrom, meansextending between t andconnecting adjacent edges of the adjacent side panels, V

a reinforcing panel integrally joined to the upper edge of each of saidside panels and lying ina flat plane extending upwardly andoutwardlyat'an angle from the Hat plane of said side panels, a second reinforcingpanel integrally joined to the upperedge of each of said first panels.and extending downwardly and outwardly therefrom, said secondreinforcing panel having the same height as said first reinforcingpanel, a third reinforcing panel integrally joined to the lower edge ofeach of said second panels and extending. horizontally therefrom to-Ward. the upper edges of said side panels, and an. elongatedglue tabintegrally formed on and depending perpiendicw larly from the side ofeach: of said third reinforcing panels adjacent said side panels, eacltof said tabs engaging against. and being fixedly secured to a respectiveone of, said side panels closely adjacent the. upper edge thereof, meanssecuring said reinforcing panels to ad-- jacent; reinforcing panels atthe corners of saidboxsaid first, second and third reinforcing panelsforming subs-r stantially' an isosceles triangle in cross-section,whereby vertical pressure applied on the top 'edges'of said box will beevenly distributed between said first and second reinforcing panels.

References Cited in the file of this patent UNITED STATES PATENTS1,799,338 Weaver V Apr. 7, 1931 1,955,663 Wendell et al Apr. 17, 19342,005,597 Siler June 18, 1935 2,065,804 G'uyer Dec. 1936 2,170,714Ferguson Aug. 22, 1939 2,279,670 Ford et-a'l: Apr; 14, 1942

